CVE-2017-10073 in FLEXCUBE Universal Banking
Summary
by MITRE
Vulnerability in the Oracle FLEXCUBE Universal Banking component of Oracle Financial Services Applications (subcomponent: Infrastructure). Supported versions that are affected are 11.3.0, 11.4.0, 12.0.1, 12.0.2, 12.0.3, 12.1.0, 12.2.0 and 12.3.0. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle FLEXCUBE Universal Banking. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle FLEXCUBE Universal Banking, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of Oracle FLEXCUBE Universal Banking accessible data as well as unauthorized read access to a subset of Oracle FLEXCUBE Universal Banking accessible data. CVSS 3.0 Base Score 5.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N).
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Analysis
by VulDB Data Team • 01/03/2021
The vulnerability identified as CVE-2017-10073 resides within Oracle FLEXCUBE Universal Banking, a critical component of Oracle Financial Services Applications that serves as the backbone for banking operations. This flaw manifests in the Infrastructure subcomponent of the FLEXCUBE Universal Banking system, affecting multiple major versions including 11.3.0, 11.4.0, 12.0.1, 12.0.2, 12.0.3, 12.1.0, 12.2.0, and 12.3.0. The vulnerability classification as easily exploitable indicates that attackers can leverage this weakness with minimal technical expertise, making it particularly dangerous in financial environments where security is paramount.
This security weakness represents a significant authorization bypass vulnerability that operates through HTTP network access, allowing attackers with low privilege levels to compromise the targeted system. The attack vector requires network connectivity and specifically targets the Infrastructure component where the vulnerability exists. The CVSS 3.0 scoring system rates this vulnerability at 5.4, indicating a medium severity level with specific impacts to both confidentiality and integrity. The attack complexity is rated as low, meaning minimal technical skills are required for exploitation, while the privilege requirements are also low, suggesting that attackers need only basic user credentials or access. The user interaction requirement of "required" indicates that successful exploitation depends on some form of human involvement beyond the initial attacker actions, typically involving user acceptance of malicious content or interaction with compromised systems.
The operational impact of this vulnerability extends beyond the immediate FLEXCUBE Universal Banking component, potentially affecting additional Oracle Financial Services products within the ecosystem. Attackers who successfully exploit this vulnerability can achieve unauthorized modifications to data through update, insert, or delete operations on specific data sets that the system allows access to. Additionally, the vulnerability enables unauthorized read access to subsets of data that should remain protected, creating potential exposure of sensitive financial information. This dual impact on both data integrity and confidentiality creates a substantial risk for financial institutions relying on these systems, as unauthorized modifications could lead to financial losses and data manipulation while read access could expose sensitive customer information or transaction details.
The vulnerability aligns with CWE-284, which addresses improper access control mechanisms, specifically targeting inadequate authorization controls within the Oracle FLEXCUBE system infrastructure. From an attacker perspective, this vulnerability maps to several ATT&CK techniques including T1078 for valid accounts and T1566 for social engineering, as the requirement for human interaction suggests potential phishing or social engineering components. Organizations should implement immediate mitigations including applying Oracle's security patches, implementing network segmentation to limit access to the vulnerable components, and establishing enhanced monitoring for unauthorized access attempts. Access controls should be reviewed and strengthened to ensure proper privilege levels, while network access controls should be implemented to restrict HTTP access to only authorized personnel and systems. The vulnerability demonstrates the critical importance of maintaining up-to-date security patches in financial applications, where even medium severity vulnerabilities can lead to substantial financial and reputational damage when exploited by malicious actors.